A vehicular air conditioning system provided with a cooling heat exchanger and a heating heat exchanger includes a cold air flow path through which an air passing through the cooling heat exchanger bypasses the heating heat exchanger, a hot air flow path through which the air passing through the cooling heat exchanger passes, a plurality of temperature doors configured to allow the air passing through the cooling heat exchanger to selectively pass through the heating heat exchanger, and an interlocking part configured to allow the temperature doors to be driven in conjunction with each other.

A tie rod including a first tie rod part and a second tie rod part of plastic material, and a joint providing a length-adjustable connection between the first and second tie rod parts is provided. The joint includes a first and a second series of ribs made on the first and second tie rod parts, respectively. The first series of ribs is capable of engaging with the second series of ribs to define a relative longitudinal position of the first and second tie rod parts. The joint further includes a clip hinged to the first tie rod part and carrying the first series of ribs, the clip being foldable to snap onto the first tie rod part to lock an end of the second tie rod part within a seat of the first tie rod part.

An actuator assembly for actuating actuatable members. The actuator assembly includes an upper cam mounted to an upper side of a center plate. The upper cam is rotatable by a motor. A lower cam is mounted to a lower side of the center plate. The lower cam is rotatable by the motor. The upper cam and the lower cam are configured to rotate at different speeds and are configured to actuate linkages for moving the actuatable members.

The present invention relates to an air conditioner for a vehicle having a cover of an improved structure which can prevent foreign matters from being introduced into a sliding door driving part and also prevent the introduced foreign matters from being stuck in the driving part. The air conditioner for a vehicle, which includes an air-conditioning case having a heat exchanger, and a first door and a second door disposed in the air-conditioning case to adjust the degree of opening of an air passageway, further includes: a plurality of driving parts for interlocking and operating the first door and the second door; and a cover part for fixing the driving part to the air-conditioning case. The cover part covers at least one among the plurality of driving parts.

The present application discloses an air conditioning system for a vehicle and an operating method therefor, which relates to the technical field of vehicle air conditioners. The system includes a motor (5), an operating dial (3) and internal and external-circulation ventilation doors (1, 2), and the motor (5) drives the operating dial (3) to drive the internal and external-circulation ventilation doors (1, 2) to rotate to achieve the purpose of different internal and external air-intake ratios. The operating method includes: receiving a pulse signal, wherein the pulse signal comprises a preset direction of rotation and a preset step count of rotation of the motor (5); and driving the motor (5) to rotate in the preset direction by the preset step count, to drive the operating dial (3) to rotate, to cause the internal-circulation ventilation door (1) to rotate to a first preset angle, and cause the external-circulation ventilation door (2) to rotate to a second preset angle, so that an air-intake ratio of an internal air-intake volume and an external air-intake volume of the air conditioning system is a preset first ratio. The system and the method can control the ratio of the mixing of the internal air and the external air, to satisfy different usage conditions, to achieve the purpose of improving the fuel-oil economic efficiency of the entire vehicle, the endurance mileage of new-energy vehicles and the comfort of the air-conditioner blown air.

An air flap structure for a motor vehicle air-conditioning module includes at least two air outlet openings, a shaft, and a drive. The at least two air outlet openings each have an assigned closure flap configured to close and open the assigned air outlet opening. The shaft has therein the closure flaps arranged and is configured to rotate therewith. The closure flaps are rotatable into a closed and an opened position by a rotational movement of the shaft. The drive is configured to drive the shaft and configured to generate the rotational movement thereof. With respect to imaginary planes at both ends of the shaft, perpendicular to the shaft, the drive is arranged outside the axially outwardly facing sides of said two imaginary planes. A driving force of the drive is introduced onto the shaft exclusively between two adjacent air outlet openings of the at least two air outlet openings.

A rotary apparatus includes a motor, a plurality of gears, and a sensor configured to detect a rotation angle of one of the plurality of gears. The sensor includes a first connection terminal electrically connecting to the outside, and a base portion. The first connection terminal is disposed at the base portion. A second connection terminal is disposed at the base portion.

A rotary apparatus includes a motor, a plurality of gears including an output gear, and a housing accommodating the plurality of gears and the motor. The housing includes a first surface portion, a second surface portion facing the first surface portion and spaced apart from the first surface portion, and a sidewall portion provided at an outer peripheral portion of the first surface portion and the second surface portion and supporting the first surface portion and the second surface portion. One of the first surface portion and the second surface portion includes a vibration damping part opposing the output gear.

A rotary apparatus includes a motor, a plurality of gears, and a sensor configured to detect a rotation angle of one of the plurality of gears. The sensor includes a first connection terminal electrically connecting to the outside, and a base portion. The first connection terminal is disposed at the base portion. A second connection terminal is disposed at the base portion.

A method for driving an actuator of an HVAC system having a region of mechanical play is provided, and which comprises the steps of: a] monitoring a position of a movable member of the HVAC system or at least one rotatable element of the actuator to determine when the region of mechanical play has been entered or exited; and b] ramping a drive power to the actuator between a zero-velocity drive power and a steady-state-velocity drive power during the region of mechanical play. The HVAC system implementing the above method is not only capable of reducing the noise produced by an HVAC system, but is also capable of reducing an over-powering of the actuator when there is a low load on the system.